From 4922f71f2506e36d81a03f8fec4559bb7d175bf7 Mon Sep 17 00:00:00 2001 From: Nicolas Cavallari Date: Wed, 4 Jul 2012 18:10:08 +0200 Subject: [PATCH] mac80211: tx: do not drop non-robust mgmt to non-MFP stas. When drop_unencrypted is enabled and MFP is disabled, non-robust management frames for not-yet associated STA are dropped. This isn't visible as many management frames sent from the kernel have TX_INTFL_DONT_ENCRYPT set and management frames injected from a monitor vif have TX_CTL_INJECTED so aren't dropped. But management frames sent from userspace via NL80211_CMD_FRAME do not have this flag set, so are dropped. This patch make it always accept non-robust management frames. Signed-off-by: Nicolas Cavallari Signed-off-by: Johannes Berg --- net/mac80211/tx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index a79fd86..b755e77 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -552,6 +552,9 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) !(ieee80211_is_action(hdr->frame_control) && tx->sta && test_sta_flag(tx->sta, WLAN_STA_MFP))) tx->key = NULL; + else if (ieee80211_is_mgmt(hdr->frame_control) && + !ieee80211_is_robust_mgmt_frame(hdr)) + tx->key = NULL; else { I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted); return TX_DROP; -- 2.7.4